Question : Which of the following is widely used in making semiconductor chips?
Option 1: Radium
Option 2: Sodium
Option 3: Germanium
Option 4: Sulphur
Correct Answer: Germanium
Solution : The correct option is Germanium.
Germanium's electrical properties make it a suitable material for use in semiconductor applications. It has a high mobility of charge carriers (electrons and holes), for fast electronic switching.
Application | Eligibility | Selection Process | Result | Cutoff | Admit Card | Preparation Tips
Question : Which of the following chemicals are widely used in gunpowder of fireworks?
Option 1: Silver nitrate and charcoal
Option 2: Silver nitrate and sulphur
Option 3: Potassium sulphate and phosphorous
Option 4: Potassium nitrate, sulphur and charcoal
Question : Which of the following is used as control rods in Atomic reactor?
Option 1: Sodium
Option 2: Uranium
Option 3: Graphite
Option 4: Boron
Question : Which of the following is used as fuel rods in an atomic reactor?
Question : Which of the following is not a food preservative?
Option 1: Aqua regia
Option 2: Vinegar
Option 3: Sodium chloride
Option 4: Sodium nitrite
Question : Which of the following is colourless?
Option 1: Chlorine
Option 2: Oxygen
Option 3: Phosphorus
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile